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Real members of MyBCTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.
April 20
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Answer Summary

A member worried about a strange lump below their clavicle shortly after a double mastectomy found reassurance from the community, who... Read more

A member worried about a strange lump below their clavicle shortly after a double mastectomy found reassurance from the community, who suggested it could be a seroma, hematoma, swollen lymph node, scar tissue, or even the tip of a drain. Several members offered warm encouragement ahead of the doctor's appointment, and the nurse confirmed the lump was likely caused by the drain's position. The thread ended on a happy note when the lump disappeared completely after the drains were removed.

A MyBCTeam Member

It’s gone!

April 25
A MyBCTeam Member

The nurse said it could have been the tip of
One of the drains. I didn’t realize it would have been so high.

April 22
A MyBCTeam Member

Good luck with your appt today- please check back and let us know what they think of the new lump (it could even be a bit of scar tissue). Keeping you in prayers! Hugs!

April 21
A MyBCTeam Member

Hi Erica......New lumps can be nerve wracking and stressful for sure. The AI response mentioned it could be a seroma, but left out some other things. It could also be a hematoma, which is similar to a seroma and is filled with blood instead of being a fluid build up. It could be a swollen lymph node. It could be some swollen breast tissue. It could be a swollen lump after bumping or poking your chest in the spot it appeared. Luckily you see the doctor tomorrow so they can hopefully give you a better idea of what is going on after they examine the new lump. Good luck at the doctor tomorrow. It feels so good when you get the drains removed and you will feel much better in general once they are gone!

April 20
MyBCTeam

What could cause a lump below the clavicle after a double mastectomy with drains?

A lump below your clavicle after surgery could be related to fluid buildup, which is common after mastectomy procedures. This is called a seroma, where fluid collects in the area where tissue was removed.

Seromas can cause
- Swelling
- A Show Full Answer

What could cause a lump below the clavicle after a double mastectomy with drains?

A lump below your clavicle after surgery could be related to fluid buildup, which is common after mastectomy procedures. This is called a seroma, where fluid collects in the area where tissue was removed.

Seromas can cause:
- Swelling
- A noticeable lump or bulge
- Discomfort or pressure
- Changes in skin appearance

Most seromas resolve on their own within a month or so. However, if you notice excessive swelling, pressure, hot skin, increased pain, or discoloration, contact your doctor. They can drain the fluid if needed.

Since you have drains in place, they should be helping remove excess fluid. Make sure you're emptying them as directed and tracking the output. Your doctor will typically remove drains when drainage drops below 25 milliliters in 24 hours.

It's always best to have your doctor examine any new lump to rule out other causes and ensure proper healing. Don't hesitate to reach out to your care team about any concerns.

April 20

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